CN106013194A - Adjustable cofferdam supporting system and cofferdam supporting method - Google Patents
Adjustable cofferdam supporting system and cofferdam supporting method Download PDFInfo
- Publication number
- CN106013194A CN106013194A CN201610592653.2A CN201610592653A CN106013194A CN 106013194 A CN106013194 A CN 106013194A CN 201610592653 A CN201610592653 A CN 201610592653A CN 106013194 A CN106013194 A CN 106013194A
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- Prior art keywords
- cofferdam
- fixture block
- wedge
- support system
- adjustable
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Revetment (AREA)
Abstract
The invention discloses an adjustable cofferdam supporting system and a cofferdam supporting method. The adjustable cofferdam supporting system comprises a fixed portion and an adjustable portion. The fixed portion and the adjustable portion are detachably connected. The adjustable portion comprises an installation plate and a moving mechanism. A telescopic mechanism is arranged between the installation plate and the moving mechanism. The two ends of the telescopic mechanism abut against the installation plate and the moving mechanism respectively. By the adoption of the structure, the cofferdam deformation problem can be well solved, and meanwhile installation and removal are convenient.
Description
Technical field
The present invention relates to the realm of building construction, be specifically related to a kind of adjustable cofferdam support system and realize the method that cofferdam supports.
Background technology
Cofferdam refers in water conservancy construction engineering, for building permanent water conservancy projects, the provisional building enclosure built.The effect in cofferdam be prevent water and soil enter building build position, in order at cofferdam internal drainage, excavation pit, building constructure.In bridge foundation construction, when bridge pier, stylobate plinth are positioned at below the water level of earth's surface, build up various forms of earth bank according to local material, general employing pile plank or steel sheet-pile cofferdam in the river that water is relatively deep and stream flow velocity is bigger.Cofferdam is mainly used in water and soil building, and in addition to the part as formal building, cofferdam is typically removed after being finished.
Cofferdam is as important building enclosure, and how avoiding it to collapse or deforming is the problem of the medium-term and long-term research of construction.At present, in order to reduce the deflection in cofferdam, various pull bars are welded in general employing or fastening structure prevents cofferdam deformation or collapses, or build some steel pipe support structures to strengthen the stability in cofferdam, for current construction condition, workload is the biggest undoubtedly, and the dismounting in later stage cofferdam is the most pretty troublesome.It addition, current supporting construction cannot tackle the interior pressure that cofferdam is brought well, also result in cofferdam deformation.
Summary of the invention
It is an object of the invention to provide a kind of adjustable cofferdam support system and realize the method that cofferdam supports, solving current cofferdam supporting construction and can not solve cofferdam problem on deformation well, the most existing cofferdam supporting construction is installed, is removed pretty troublesome problem.
The present invention for achieving the above object, realizes by the following technical solutions:
A kind of adjustable cofferdam support system, including fixed part and adjustabel part, fixed part uses removable connection with adjustabel part, and described adjustabel part includes installing plate and travel mechanism, being provided with stretching structure between installing plate and travel mechanism, the two ends of stretching structure withstand in installing plate, travel mechanism respectively.
In this programme, fixed part be separately fixed on cofferdam with adjustabel part relative to inwall on, after fixed part uses removable connecting with adjustabel part, obtain one across the supporting construction in cofferdam, referred to herein as removable connection can use bolt, the modes such as snap close, by regulation stretching structure, the distance regulation being capable of between installing plate and travel mechanism, the length adjustment of adjustabel part can be realized, thus realize the length adjustment of whole supporting construction, to adapt to different size of cofferdam, simultaneously, by the regulation of stretching structure, support system can be made to reach the pressure needed for cofferdam, guarantee that cofferdam is indeformable or is basically unchanged shape.
Further, as optimal technical scheme, described stretching structure is hydraulic jack.Hydraulic jack, as a kind of common stretching structure, can realize the length adjustment to support system, meets the support requirement in cofferdam, can reach again the support pressure needed for the inner support of cofferdam simultaneously.
Further, as optimal technical scheme, described travel mechanism is provided with the sleeve for placing hydraulic jack, and the piston rod front end of hydraulic jack is pushed up to installing plate.In this programme, the central axial direction of sleeve is consistent with the support direction of whole support system, hydraulic jack is placed in sleeve, sleeve simultaneously works as withstanding the effect of jack stand, and the piston rod front end of hydraulic jack is pushed up to installing plate, piston rod front end does not fixedly mounts with installing plate, contact, and in order to ensure the contact reliability of piston rod front end Yu installing plate, the structure of recess or chuck that matching form with piston rod front end closes etc can be set on a mounting board, prevent piston rod during withstanding installing plate, both occur relatively to slide.The design of this programme such structure facilitates installation and the replacing of hydraulic jack, is suitable to site installation test.
Further, as optimal technical scheme, described installing plate is provided with some first fixture blocks, and travel mechanism is provided with some and the first fixture block the second fixture block one to one；
Also include some for being placed on the wedge between the first fixture block and the second fixture block.
Due to cofferdam support be a long-time process, when hydraulic jack withstand on be in support for a long time time, support reliability can affect the support to cofferdam of the whole support system undoubtedly.nullFor this，This programme is respectively provided with some first fixture blocks on installing plate and travel mechanism、Second fixture block，Corresponding second fixture block of each first fixture block，A certain distance is there is between first fixture block and the second fixture block，When hydraulic jack pressurization makes whole support system be supported in cofferdam inside cofferdam，There is the trend outwards strutted in cofferdam，Now put into wedge between the first fixture block and the second fixture block often organizing，Then hydraulic jack oil return，Because the piston rod of hydraulic jack bounces back，Distance between first fixture block and the second fixture block reduces，Wedge is clamped，First fixture block、Wedge、Second fixture block three is connected as a single entity，Thus without the supporting role of hydraulic jack，The effect supporting cofferdam can be played equally，Make between support system with cofferdam contact more reliable，Support for a long time without having to worry about hydraulic jack and may cause supporting insecure problem.
Further, as optimal technical scheme, described second fixture block is provided with a through hole, and the first fixture block is fixed with an inserted link, and inserted link is inserted in the through hole of the second fixture block, and described wedge is provided with the bayonet socket that the matching form with inserted link closes.Inserted link makes the first fixture block and the second fixture block can be on same level straight line, wedge laying between the first fixture block and the second fixture block the most also can be made more reliable, guarantee that stress balance between the first fixture block and the second fixture block, beneficially cofferdam obtain to support reliably.
Further, as optimal technical scheme, also include latch, described wedge is additionally provided with the jack extending transversely through bayonet socket, the latch that wedge is locked on inserted link in being inserted into jack by latch.Wedge is placed between the first fixture block and the second fixture block, and after wedge is stuck on inserted link, by latch through the jack on wedge, thus wedge is locked on inserted link, wedge can be preferably stuck between the first fixture block and the second fixture block without skidding off, make the active force between the first fixture block and the second fixture block more reliable.
Further, as optimal technical scheme, also including some standard components being connected between fixed part and adjustabel part, each standard component uses removable connection.The introducing of standard component preferably can carry out flexible configuration according to the size needed for cofferdam to support system, support system is enable to be rapidly achieved required length, convenient installation, the removable connection of this programme can be to use the mode such as bolt, snap close, thus it is reduced as far as welding, being easy for installation and removal, relative to traditional support means, the recycling rate of waterused of this programme is high.
A kind of use above-mentioned adjustable cofferdam support system to realize cofferdam support method, comprise the following steps:
A first fixed part is arranged on the medial wall in cofferdam by (), be then connected with fixed part by standard component, then is connected with standard component by adjustabel part, finally installing plate is arranged on fixed part relative to cofferdam medial wall on；
B () is forced into support system born internal force tonnage to hydraulic jack after, lock hydraulic jack；
C wedge is arranged between the first fixture block and the second fixture block by (), and make wedge be stuck on inserted link, is finally inserted latch and is locked by wedge；
D the oil return of () hydraulic jack, makes wedge be clamped between the first fixture block and the second fixture block, completes the support to cofferdam.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention by being arranged to the version of fixed part, adjustabel part by support system, and the bearing length of adjustabel part is changed by stretching structure, it is thus possible to be well adapted for all size cofferdam, whole support system is without welding, the removable connection of omnidistance employing, while facilitating in-site installation, removing, it is possible to provide for cofferdam and support reliably.
(2) present invention is by being respectively provided with the first fixture block, the second fixture block in installing plate, travel mechanism, wedge is laid between first fixture block and the second fixture block, first fixture block, wedge, the second fixture block three are connected as a single entity, thus support for a long time without hydraulic jack, more closely knit, more reliable supporting role is played in cofferdam by the first fixture block, wedge, the second fixture block, also to make the distance between the first fixture block and the second fixture block accomplish linear adjustable for wedge simultaneously, can better adapt to various cofferdam, and realize precisely, support reliably.
(3) present invention is by increasing standard component, according to the size needed for cofferdam, support system can be carried out flexible configuration, support system is enable to be rapidly achieved required length, convenient installation, removable connection is all used between standard component with fixed part, adjustabel part and standard component, decreasing the inconvenience that welding brings, recycling rate of waterused is high simultaneously.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is present invention structural representation when acting on cofferdam.
Corresponding entitled of reference in figure: 1, fixed part, 2, standard component, 3, adjustabel part, 4, cofferdam, 5, sleeve, 6, stretching structure, the 7, first fixture block, the 8, second fixture block, 9, inserted link, 31, installing plate, 32, travel mechanism.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment:
As shown in Figure 1, one adjustable cofferdam support system described in the present embodiment, including fixed part 1 and adjustabel part 3, fixed part 1 uses removable connection with adjustabel part 3, adjustabel part 3 includes installing plate 31 and travel mechanism 32, being provided with stretching structure 6 between installing plate 31 and travel mechanism 32, the two ends of stretching structure 6 withstand in installing plate 31, travel mechanism 32 respectively.
nullIn the present embodiment，Fixed part 1 and travel mechanism 32 all can use steel-tube construction，Depending on the cofferdam that the big I of steel pipe supports according to actual needs，The inwall in fixed part 1 and cofferdam 4 is directly fixed，Bolt or snap close specifically can be used to be fixed，It is easy to remove，Fixed part 1 uses bolt or snap close to carry out dismountable mode connection as travel mechanism 32，Specifically，Fixed part 1 can arrange the ring disk with the junction of travel mechanism 32，The ring disk is fixed by socket respectively at fixed part 1、In travel mechanism 32，Some through holes are offered in the ring disk，Bolt or snap close is used the ring disk on fixed part 1 and travel mechanism 32 to be secured together，Realize fixed part 1 to be connected with the fixing of travel mechanism 32，Installing plate 31 can be steel plate，Steel plate can be directly anchored on the inwall in cofferdam 4，Also can not be fixed on the inwall in cofferdam 4，By stretching structure 6, steel plate is withstood，Steel plate is made to be affixed with the inwall in cofferdam 4.
Preferably, the stretching structure 6 of the present embodiment is hydraulic jack, for convenience the installation of hydraulic jack and replacing, and the present embodiment is provided with the sleeve 5 for placing hydraulic jack in travel mechanism 32, and the piston rod front end of hydraulic jack is pushed up to installing plate 31.
The problem that may cause supporting reliability concerns to solve hydraulic jack to support for a long time, the present embodiment can arrange some first fixture blocks 7 on installing plate 31, some and the first fixture block 7 second fixture block 8 one to one is set in travel mechanism 32, reliable in order to ensure stress, the present embodiment also can arrange a through hole (not marking on figure) on the second fixture block 8, an inserted link 9 it is fixed with on first fixture block 7, inserted link 9 is inserted in the through hole (not marking on figure) of the second fixture block 8, simultaneously, wedge (not marking on figure) is laid between the first fixture block 7 and the second fixture block 8, wedge is provided with the bayonet socket (not marking on figure) that the matching form with inserted link 9 closes.
In order to prevent wedge from skidding off between the first fixture block and the second fixture block, guarantee that the active force between the first fixture block and the second fixture block is more reliable, the present embodiment also can increase latch, wedge arranges the jack extending transversely through bayonet socket, after wedge is stuck on inserted link 9, jack is positioned at the lower section of inserted link 9, is inserted in jack by latch, is locked in by wedge on inserted link 9.
In order to support system be carried out flexible configuration according to the size needed for cofferdam, support system is enable to be rapidly achieved required length, convenient installation, the present embodiment also can increase some standard components, standard component can use steel-tube construction equally, realizes removable connection by bolt or snap close between standard component, all uses removable connection between standard component with fixed part, adjustabel part, reducing the inconvenience that welding brings, recycling rate of waterused is high.
Use above-mentioned adjustable cofferdam support system to realize the method that cofferdam supports as in figure 2 it is shown, a kind of, comprise the following steps:
A first fixed part 1 is arranged on the medial wall in cofferdam 4 by (), be then connected with fixed part 1 by standard component 2, then is connected with standard component 2 by adjustabel part 3, finally installing plate 31 is arranged on fixed part 1 relative to cofferdam 4 medial wall on；
B () is forced into support system born internal force tonnage to hydraulic jack after, lock hydraulic jack；
C wedge is arranged between the first fixture block 7 and the second fixture block 8 by (), and make wedge be stuck on inserted link 9, is finally inserted latch and is locked by wedge；
D the oil return of () hydraulic jack, makes wedge be clamped between the first fixture block 7 and the second fixture block 8, completes the support to cofferdam.
When needing to remove cofferdam 4, have only to hydraulic jack is pressurizeed, the distance between the first fixture block 7 and the second fixture block 8 is made to strengthen, wedge loosens naturally, taking off wedge, then hydraulic jack oil return, support system separates with the inwall in cofferdam 4, then by loop wheel machine, support system can be hung cofferdam 4, finally remove cofferdam 4 by normal operating.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every above example is made according to the technical spirit of the present invention any simple modification, equivalent variations, within each falling within protection scope of the present invention.
Claims (8)
1. an adjustable cofferdam support system, it is characterized in that: include fixed part (1) and adjustabel part (3), fixed part (1) uses removable connection with adjustabel part (3), described adjustabel part (3) includes installing plate (31) and travel mechanism (32), being provided with stretching structure (6) between installing plate (31) and travel mechanism (32), the two ends of stretching structure (6) withstand in installing plate (31), travel mechanism (32) respectively.
One the most according to claim 1 adjustable cofferdam support system, it is characterised in that: described stretching structure (6) is hydraulic jack.
One the most according to claim 2 adjustable cofferdam support system, it is characterised in that: described travel mechanism (32) is provided with the sleeve (5) for placing hydraulic jack, and the piston rod front end of hydraulic jack is pushed up to installing plate (31).
One the most according to claim 2 adjustable cofferdam support system, it is characterised in that: described installing plate (31) is provided with some first fixture blocks (7), and travel mechanism (32) is provided with some and the first fixture block (7) the second fixture block (8) one to one；
Also include some for being placed on the wedge between the first fixture block (7) and the second fixture block (8).
One the most according to claim 4 adjustable cofferdam support system, it is characterized in that: described second fixture block (8) is provided with a through hole, an inserted link (9) it is fixed with on first fixture block (7), inserted link (9) is inserted in the through hole of the second fixture block (8), and described wedge is provided with the bayonet socket that the matching form with inserted link (9) closes.
One the most according to claim 5 adjustable cofferdam support system, it is characterised in that: also include latch, described wedge is additionally provided with the jack extending transversely through bayonet socket, the latch that wedge is locked on inserted link in being inserted into jack by latch.
One the most according to claim 1 adjustable cofferdam support system, it is characterised in that: also including some standard components (2) being connected between fixed part (1) and adjustabel part (3), each standard component (2) uses removable connection.
8. one kind uses the adjustable cofferdam support system described in any one of claim 1 ~ 7 to realize the method that cofferdam supports, it is characterised in that: comprise the following steps:
A fixed part (1) is first arranged on the medial wall of cofferdam (4) by (), then standard component (2) is connected with fixed part (1), again adjustabel part (3) is connected with standard component (2), finally installing plate (31) is arranged on fixed part (1) relative to cofferdam (4) medial wall on；
B () is forced into support system born internal force tonnage to hydraulic jack after, lock hydraulic jack；
C wedge is arranged between the first fixture block (7) and the second fixture block (8) by (), and make wedge be stuck on inserted link (9), is finally inserted latch and is locked by wedge；
D the oil return of () hydraulic jack, makes wedge be clamped between the first fixture block (7) and the second fixture block (8), completes the support to cofferdam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592653.2A CN106013194B (en) | 2016-07-26 | 2016-07-26 | A kind of adjustable cofferdam support system and the method for realizing cofferdam support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592653.2A CN106013194B (en) | 2016-07-26 | 2016-07-26 | A kind of adjustable cofferdam support system and the method for realizing cofferdam support |
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| Publication Number | Publication Date |
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| CN106013194A true CN106013194A (en) | 2016-10-12 |
| CN106013194B CN106013194B (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610592653.2A Active CN106013194B (en) | 2016-07-26 | 2016-07-26 | A kind of adjustable cofferdam support system and the method for realizing cofferdam support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951671A (en) * | 2018-08-22 | 2018-12-07 | 中国葛洲坝集团第五工程有限公司 | A kind of large size coin type compartment cofferdam and construction method |
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| JPH06220865A (en) * | 1993-01-27 | 1994-08-09 | Shimizu Corp | Double cofferdam process |
| CN201209254Y (en) * | 2008-05-22 | 2009-03-18 | 郑宏日 | Telescopic supporting tube |
| CN202672158U (en) * | 2012-07-11 | 2013-01-16 | 中国十七冶集团有限公司 | Adjustable simple fastening deep foundation excavation retaining and protecting device |
| CN203066090U (en) * | 2013-03-20 | 2013-07-17 | 中国路桥工程有限责任公司 | Assembled bracing structure for steel sheet piling cofferdam construction |
| CN203373752U (en) * | 2013-06-19 | 2014-01-01 | 上海宏信设备工程有限公司 | Large diameter steel support adjustable head |
| CN204238224U (en) * | 2014-11-26 | 2015-04-01 | 中交二航局第四工程有限公司 | A kind of inclined-plane anchoring self-locking list voussoir bracing members movable end |
| CN204803896U (en) * | 2015-07-08 | 2015-11-25 | 中建筑港集团有限公司 | Adjusting device that deep basal pit steel shotcrete prestressing force was applyed |
| CN205822215U (en) * | 2016-07-26 | 2016-12-21 | 中国五冶集团有限公司 | A kind of adjustable cofferdam support means |
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2016
- 2016-07-26 CN CN201610592653.2A patent/CN106013194B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06220865A (en) * | 1993-01-27 | 1994-08-09 | Shimizu Corp | Double cofferdam process |
| CN201209254Y (en) * | 2008-05-22 | 2009-03-18 | 郑宏日 | Telescopic supporting tube |
| CN202672158U (en) * | 2012-07-11 | 2013-01-16 | 中国十七冶集团有限公司 | Adjustable simple fastening deep foundation excavation retaining and protecting device |
| CN203066090U (en) * | 2013-03-20 | 2013-07-17 | 中国路桥工程有限责任公司 | Assembled bracing structure for steel sheet piling cofferdam construction |
| CN203373752U (en) * | 2013-06-19 | 2014-01-01 | 上海宏信设备工程有限公司 | Large diameter steel support adjustable head |
| CN204238224U (en) * | 2014-11-26 | 2015-04-01 | 中交二航局第四工程有限公司 | A kind of inclined-plane anchoring self-locking list voussoir bracing members movable end |
| CN204803896U (en) * | 2015-07-08 | 2015-11-25 | 中建筑港集团有限公司 | Adjusting device that deep basal pit steel shotcrete prestressing force was applyed |
| CN205822215U (en) * | 2016-07-26 | 2016-12-21 | 中国五冶集团有限公司 | A kind of adjustable cofferdam support means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951671A (en) * | 2018-08-22 | 2018-12-07 | 中国葛洲坝集团第五工程有限公司 | A kind of large size coin type compartment cofferdam and construction method |
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| CN106013194B (en) | 2019-04-23 |
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